Rim for the road-wheels of vehicles.



G. WEBB.

RIM FOR THE ROAD WHEELS OF VEHICLES.

APPLICATION TILED DEO.17, 1908.

WW /V7017 20756 M55 Patented Feb. 7, 1911.

UNITED STATES PATENT onnicn.

GEORGE WEBB, F MONMOUTH, ENGLAND. ASSIGNOR TO THE SPENCER MOULTON RIM SYNDICATE LIMITED, 01? LONDON, ENGLAND.

RIM FORTHE ROAD-WHEELS OF VEHICLES.

ossaso.

i Specification of Letters Patent.

Patented Feb. '7, 1911.

Application filed December 17, 1908. Serial No. 467,997.

To attic/tom it may concern:

lie it known that l, (locum-1 Ween, subject of Great Britain, residing at illomnouth, Vales, England. have invented new and use 't'ulImprovements in ltims for the Road- \Vheels of Vehicles, of which the following is a specification.

-'lhis invention relates to tirecarrying rims of the 'circin'iiiierentially split or divided type and has for its object to provide an improved arrangement whereby either the whole or one part only of the rim may be readily detached from the wheel. The arrangement is also such that when desired the rim may be carried complete as a spare 'rnn.

' 'lheinvention consists in the special combination and arrangement of parts as here-. inatter specifically described and claimed,

and in order that the invention may be clearly understood reference is made in describing the same to the accompanying drawings, wherein Figure 1, represents a cross sectional view through one. of the bosses of the rim constructed according to this invention. Fig. 2, represents a side view of a portion of the wheel showing one of the bolts whereby the rim is drawn onto the telly. Fig. 3, is a so perspective view oi a portion of the rim and 'fellyshowing the contacting tapered sur- 'l'accs. Fig. fl, represents a side view of the rim and :t'elly showing one of the bolts which fasten the two parts of the rim together. Fig. 5, is a plan of the telly per ac.

Like parts are designated by the same reference characters throughoutthe drawings. Referring to the drawings, the periphery of the wheel is faced with a fixed metal rim 2 the upper surface of which coned or tapered transversely and also formed at four or more equidistantly spaced points with the t'ansverse grooves i). The removable rim which carries the tire is split. or divided circnniferentially into two parts, 1-, .1-. at or about the center line and its inner periphery is concd or tapered transversely to correspond with the coned outer surface of the rim 2 with which it is adapted to make a close. contact. Each part of the rim is formed on its inner periphery with a series of four or more equidistantly placed trans verse hollow bosses G, (3 which when the rim is placed in position'on the wheel occupy the aforesaid grooves 3 in the rimaml Cw prc"ent the rim creeping on the wheel. The bosses (3 on one part of the rim register with and virtually form continuatious oi the bosses ti, on the other part of the rim. The two parts of the rim are .-(tll-l'ttl together in their proper relative positions by a set of screws T which pass through the suitably tapped holes in the bosses ti on the part -l; oi the rim and enter the inner ends of the correspondingly tapped holes in the bosses 6o (3, on the other part i" of the rim. as shown in Fig. 1. The complete rim when placed on the wheel is drawn into close contact with the rim 2 by a second set oi screws 8 which pass through and are carried by perli'orated brackets S) fixed by bolts 5) to the face of the wheel. Said second set o'l. screws 8 enter the outer ends ot the bosses (3 on the said other part 4 of the rim.

The screws 8 are each prevented from be- 7 ing withdrawn so as to become loose parts by means of a plate 10 secured by the bolts 9 to the brackets 0 and engaging behind a collar 11 on the screw, as shown in Figs. 1 and 2. By means of this arrangement rotation of the. screws 8 in one direction draws the contacting coned surfaces of the fixed and removable rims close together while opposite rotation ot'said screws forces the said suritaces away from each other so that the removable rim may be readily slipped off the fixed rim.

The contacting surfaces of the rim and folly in the immediate vicinity of the grooves and bosses are preferably formed parallel and the circnmterential division 12 of the rim is staggered or set out at one or more parts 13, as shown in Fig. 3. for several reasons, firstly to lock the two parts of the rimtogether circum'lierentially and to in.- sure same when put together occupying their proper relative positions, and secondly, to provide for the fastening screws 7 entering an appreciable distance into the bosses (3 while at the same time leaving sullicient room therein for the inner ends of the screws 8. in the event of a punctured tire, or where for any other reason it is desired to remove the tire from the rim the latter may either be divided while on the wheel by lak-- ing out or slacking the screws 7 or the rim may be detached bodily from the wheel and subsequently divided tofacilitate the detachment of the tire therefrom.; The outer ends of the screws 7 and 8 are preferably squaredas shown to, take a key.

What I claim and desire to secure by Letters Patent of the United States is- 1. The combination with a fixed ring that is transversely beveled or coned and is provided with a plurality of transverse recesses, of a removable tire carrying rim that fits thereon and is correspondingly beveled or coned, said removable rim comprising detachably associated ring sections, a series of hollow internally screw threaded bosses carried by the mner sides oi the removable rnn sections, and a plurality of screws located in each recess of the fixed rim, one of said screws connecting the two parts of the rim together, and the other constituting means for securing the removable rim to the wheel.

2. The combination with a wheel having a parts for efi'ecting the movement of the removable rim on the fixed rim.

3. The combination with a fixed rimhaving transverse recesses, of a two-part removable-rim surrounding the fixed rim and having threaded bosses disposed in the recesses, bolts threaded through the bosses of one part of the removable rim into the bosses of the other part, and bolts rotatably mounted 'on the fixed rim and detachably engaging the bosses of the second part of the removable rim.

i. The combination with a fixed rimllt1" ing transverse recesses, of a removable twopart rim surrounding the same, botli parts.

of the removable rim having internally' threaded bosses located ineach transverse recess, bolts connecting the bosses for securing the parts of the removable rim together. brackets mounted on the fixed rim, and bolts rotatable in the bracketsand engaging certain bosses of the removable rim for efieeting the transverse movement of said removable rim onthe fixed rim.

In testimony whereof I have signed m v name to this specification in the presence of two subscribing witnesses.

GEORGE 'EBB.

Witnesses I. G. Nonrox, J. Groom. 

